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Speaker Asylum: Re: From another posterabout the B&W 700 series design flaws... by John Ashman General speaker questions for audio and home theater. |
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In Reply to: Re: From another posterabout the B&W 700 series design flaws... posted by theaudiohobby on December 5, 2004 at 15:15:48:
Really? Where exactly IS the "new" breakup mode in B&W's kevlar? At almost any crossover rate, starting at 4K, it will be audible. In fact, at 12dB/octave, listening at 90dB, the midrange will be putting out 78dB at8K and 66dB at 16K. IOW, no matter where the breakup mode is, it will be audible due to the poor crossover choice. The SIMPLE, COMMON SENSE solution is to put in a decent tweeter and run a 24dB/octave crossover at 2.5KHz +/-. That would also substantially improve dispersion, something at which the B&Ws are pretty poor. And the high tensile strenght of Kevlar would act terribly against the FST design because it would force cone movement to be converted to cone resonances. Any decent tweeter could be crossed over at 2.5kHz, especially with a 24dB/octave crossover, so there's no excuse EXCEPT that people hear the breakup mode and think it's "detail". Also, you should now that FST design would automatically suck at frequencies much lower than, say, 500 Hz. And regular Kevlar implementations suck pretty badly by 250Hz and down. Bad design is still bad design, no matter how you try to gloss over it.
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Topic - Why are the B&W 700 series less used than the CDM NT series? - bluesky 20:03:00 11/30/04 ( 34)
- B&W excellent marketing-you pay for that ! - Blue Bull 20:34:34 12/3/04 ( 0)
The B & W 705 is a very fine speaker! - Pat D 14:33:15 12/3/04 ( 0)
well the CDM 1NT sounded better and cost less... - RGA 19:17:22 12/2/04 ( 17)
- From another posterabout the B&W 700 series design flaws... - RGA 19:36:33 12/2/04 ( 16)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 02:11:24 12/3/04 ( 15)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 11:03:14 12/3/04 ( 14)
- You understood my comments perfectly - layman 15:52:42 12/5/04 ( 1)
- Re: You understood my comments perfectly - John Ashman 14:30:16 12/6/04 ( 1)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 15:35:34 12/3/04 ( 11)
- Re: From another posterabout the B&W 700 series design flaws... - morricab 09:20:35 12/4/04 ( 0)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 18:54:06 12/3/04 ( 7)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 14:50:02 12/4/04 ( 6)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 16:00:56 12/4/04 ( 5)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 15:15:48 12/5/04 ( 4)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 12/5/04 20:27:27 12/5/04 ( 3)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 05:30:48 12/6/04 ( 2)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 11:13:09 12/6/04 ( 0)
- Re: From another posterabout the B&W 700 series design flaws... - John Ashman 09:28:17 12/6/04 ( 0)
- Re: From another posterabout the B&W 700 series design flaws... - RGA 18:47:36 12/3/04 ( 1)
- Re: From another posterabout the B&W 700 series design flaws... - theaudiohobby 14:05:36 12/4/04 ( 0)
Re: Why are the B&W 700 series less used than the CDM NT series? - Oskar25 10:19:07 12/1/04 ( 1)
- Re: Oskar,thanks for input. - bluesky 21:39:55 12/1/04 ( 0)
Re: Why are the B&W 700 series less used than the CDM NT series? - Bombaywalla 08:40:42 12/1/04 ( 1)
- Re: Bombaywalla,thanks for input. - bluesky 21:38:32 12/1/04 ( 0)
Re: Why are the B&W 700 series less used than the CDM NT series? - Bandit 06:25:22 12/1/04 ( 2)
- off topic - theaudiohobby 07:24:28 12/1/04 ( 0)
Re: Bandit,thanks for input. - bluesky 06:37:27 12/1/04 ( 0)
Re: Why are the B&W 700 series less used than the CDM NT series? - Toddd 06:04:16 12/1/04 ( 2)
- Re: Why are the B&W 700 series less used than the CDM NT series? - RGA 19:19:50 12/2/04 ( 0)
Re: I guess that the B&W 703's would be not matched well with the amps. - bluesky 06:19:39 12/1/04 ( 0)
Beats me....I've always like the CDM line myself - doodlebug 22:48:36 11/30/04 ( 3)
- Re: doodlebug,thanks for input. - bluesky 06:22:50 12/1/04 ( 0)
Does not it strike you as odd that - theaudiohobby 01:09:47 12/1/04 ( 1)
- Re: theaudiohobby,thanks for input. - bluesky 07:07:18 12/1/04 ( 0)